Platyhelminthes & Nematoda

A tapeworm lives inside of a host's body. This means that tapeworms are _______________. 

• Ectoparasites
• Endoparasites
• Free-living
• Flukes

How many types of tapeworms are known to infect humans?

• 1
• 2
• 4
• 6

Flatworms have no true body cavity. This means they are ____________________. 

• Symmetrical
• Sessile
• Coelomates
• Acoelomates

The bodies of flatworms are flattened ___________________. 

• Laterally
• Bilaterally
• Radially
• Dorso-ventrally

What is a definitive host? 

• An organism that any parasite can live on.
• The last organism that a parasite uses to live.
• The organism that parasitic eggs are laid on. 
• An organism that parasites find easily. 

Which of the following terms does not relate to flatworm reproduction?

• Dimorphism 
• Hermaphroditic 
• Monoecious
• Cross-fertilization

A brightly colored flatworm, swimming with a wavelike motion, likely belongs to which class?

• Cestoda
• Trematoda 
• Turbellaria 
• Monogenea 

Tags

NGSS.MS-LS4-2

The small segments behind a scolex that reproduce quickly, making a tapeworm longer and longer are called...

• Cilia
• Hooks
• Proglottids
• Snaps

Tags

NGSS.MS-LS3-2

What is cephalization? 

• Having male and female parts.
• A concentration of sense organs and nervous system at the anterior end of the body. 
• Feeding off of another organism.
• Breathing through the skin.

Which type of roundworm is the most life-threatening canine worm?

• Heartworm
• Pinworm
• Hookworm
• Liverworm